Remove unused struct member.
Remove unused struct member.

Remove unused struct member.

PiperOrigin-RevId: 249300446
Change-Id: Ifb16538f684bc3200342462c3da927eb564bf52d

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor